A Night in the Museum. A BW Photo. There are two "official steam locomotives of Pennsylvania", K4s #1361, which will hopefully complete it's perilous restoration to operation and sister K4s #3750 seen here getting the type of minor cosmetic restoration that she would've gotten in the early part of the century. Special thanks to David Dunn from the Museum, Pete Lerro Jr and RP conributor Pete Lerro III, in preperation for an upcomming night photo shoot.